1045550503 has 4 divisors (see below), whose sum is σ = 1046565648. Its totient is φ = 1044535360.

The previous prime is 1045550501. The next prime is 1045550509. The reversal of 1045550503 is 3050555401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1045550503 - 2¹ = 1045550501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045550501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506026 + ... + 508087.

It is an arithmetic number, because the mean of its divisors is an integer number (261641412).

Almost surely, 2^1045550503 is an apocalyptic number.

1045550503 is a deficient number, since it is larger than the sum of its proper divisors (1015145).

1045550503 is a wasteful number, since it uses less digits than its factorization.

1045550503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015144.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 1045550503 is about 32334.9733724956. The cubic root of 1045550503 is about 1014.9586248270.

The spelling of 1045550503 in words is "one billion, forty-five million, five hundred fifty thousand, five hundred three".